Refute. An increase in income does not always lead to a rise in demand for all goods.

• Normal Goods: For standard and superior goods (such as branded clothing, fruits, and electronics), demand rises as consumers gain higher purchasing power.
• Inferior Goods: For low-quality commodities (such as coarse grains or cheap footwear), an increase in income causes demand to fall because consumers can now afford better alternatives and switch away from them.
• Basic Necessities: For life essentials (such as salt or life-saving medicines), demand remains practically unchanged regardless of income growth.

• a. Demand for diesel cars: Increases. Diesel cars act as a substitute to petrol cars; buyers switch toward cheaper fuel options.
• b. Demand for electric cars: Increases. Electric vehicles are cleaner, more cost-effective substitutes that become much more attractive as fuel prices rise.
• c. Demand for car accessories: Decreases. Accessories are complementary goods to cars; when soaring petrol prices dampen car purchases and driving, the demand for accessories drops.
• d. Demand for public transport: Increases. Commuters seek affordable substitute travel, leading to higher passenger traffic on buses and metro trains.

• a. Cost of production: Decreases per unit of crop. Higher crop yield paired with lower water and labor expenses lowers the average cost of production per quintal.
• b. Willingness to supply: Increases at every price point. Lower production costs expand profit margins, incentivizing the farmer to bring larger quantities to the market.
• c. Overall market supply: Expands significantly. Widespread adoption causes an outward (rightward) shift of the total market supply curve, raising crop availability across the market.

• Why Sellers Lower Prices: According to the Law of Demand, a drop in price causes an increase in quantity demanded. Retailers take advantage of high festival shopping interest to clear high sales volumes.
• Effect on Equilibrium: Discounting below standard equilibrium causes quantity demanded to exceed immediate stock, generating short-term excess demand (flash-sale stockouts) until supply scales up.
• Mutual Benefit for Both Parties:
  • Consumers benefit by buying items at attractive discounts, saving money.
  • Sellers benefit through rapid inventory turnover, bulk sales revenue, and economies of scale, earning higher overall profit despite lower margins per unit.

Correct Option: b. Shortage

Elucidation:

• Setting an official maximum price below the equilibrium price is called a price ceiling.
• At this reduced mandatory price, consumer demand expands rapidly because the vaccine is affordable to everyone.
• At the same time, vaccine producers reduce output or cannot cover manufacturing costs, leading to quantity demanded being greater than quantity supplied (QD > QS), which causes an acute shortage in the market.

• Examples of Price Controls:
  • Life-Saving Medicines: Capped under the National List of Essential Medicines (NLEM) through Drug Price Control Orders (DPCO) to keep treatments affordable.
  • Essential Food Grains (Ration shops / PDS): Subsidized via maximum price ceilings so low-income households can afford rice and wheat.
  • Agricultural Crops (MSP - Minimum Support Price): Serves as an official price floor to guarantee farmers a minimum income and protect them from sudden price crashes.
  • Public Utilities (Bus fares, Metro tickets, Electricity): Regulated by state bodies to keep public transport and energy affordable for all.
• Reasons: To protect public health, prevent monopoly exploitation, ensure universal access to life essentials, and safeguard low-income families from sudden price spikes.

Yes, excessive government regulation can disrupt and hurt markets:

• Price Distortions & Supply Shortages: Setting prices artificially below costs removes producer incentives, triggering shortages, hoarding, and black-market trading.
• Compliance Burden: Excessive permits, licenses, and inspections raise overhead costs, hurting small businesses and hindering the ease of doing business.
• Lower Innovation: Heavy price caps leave little profit margin for companies to invest in research, modernization, or higher quality standards.
• Example: Strict rent control laws in several cities discouraged property owners from maintaining buildings and froze new housing investments, resulting in urban rental housing shortages.

Economic Insight: As price drops from ₹100 to ₹20, every consumer increases their purchase, demonstrating the Law of Demand. Total market demand is obtained by horizontally adding individual demand figures (You + Friend 1 + Friend 2 + Friend 3), creating a flatter and more responsive market demand curve.

• a. Price Determination: No single seller fixes prices; prices emerge continuously through bargaining and the interaction of total market supply arriving from wholesale mandis and buyer demand.
• b. Price Swings:
  • High prices: Crop damage from unseasonal rains or transport delays restrict supplies, causing shortages.
  • Low prices: Bumper seasonal harvests cause massive arrivals in the market, creating excess supply that pushes prices down.
• c. Morning vs. Evening Tomato Prices: Tomatoes are perishable. In the morning, freshness is high and shopper footfall is heavy, enabling vendors to charge premium rates. By late evening, vendors cut prices to clear unsold stock before it spoils overnight.

• a. Point E: Represents Market Equilibrium, the point where the demand curve intersects the supply curve (Quantity Demanded = Quantity Supplied).
• b. Equilibrium Values: Equilibrium Price = ₹250; Equilibrium Quantity = 30 kg.
• c. Points A, B and Gap AB: At ₹300, Point A shows quantity demanded (~24 kg) while Point B shows quantity supplied (~37 kg). Since supply exceeds demand, the gap AB represents Excess Supply (Surplus).
• d. Points C, F and Gap CF: At the lower price line (~₹160), Point C shows quantity supplied (~17 kg) while Point F shows quantity demanded (~43 kg). Since demand exceeds supply, the gap CF represents Excess Demand (Shortage).
• e. Free Market Adjustment: Unsatisfied buyers competing for scarce goods bid prices upward. As price rises from the lower line toward ₹250, sellers expand output while buyers scale back demand until market equilibrium is restored at Point E.

• a. Plotting & Curve Identification:
  • In economic analysis, demand curves slope downwards due to the inverse relationship between price and quantity, while supply curves slope upwards due to the direct relationship between price and quantity.
  • Plotted across the schedule, the downward-sloping curve represents consumer demand behaviour, and the upward-sloping curve represents producer supply behaviour.
• b. Equilibrium Price and Quantity: Both curves intersect at Point E:
  • Equilibrium Price = ₹30
  • Equilibrium Quantity = 15 kg
• c. Analysis at ₹20 and ₹40:
  • At Price = ₹20: The market experiences a 10 kg shortage/imbalance. Competitive buying pressure bids prices upward toward the ₹30 equilibrium.
  • At Price = ₹40: The market experiences a 10 kg surplus/imbalance. Unsold inventory creates downward pricing pressure, bringing it back down toward the ₹30 equilibrium level.